ISLAND NIGHT LIZARD 



Xantusia riversiana 



KINGDOM Animalia 



CLASS Reptilia 



ORDER Squamata 



FAMILY Xantusiidae 



OTHER COMMON NAMES None 



DATE 



Entered into SWIS To be determined 



Updates 15 October 1978 



LEGAL STATUS 



Federal Threatened (42 FR 40682, 11 Aug 



1977). 

 States Not nominated 



REASONS FOR CURRENT STATUS 



This lizard is known only from three major 

 California islands: Santa Barbara, San Nicolas, 

 and San Clemente. Island habitats and animal 

 populations have been severely modified as a 

 result of the introduction of new species, espe- 

 cially feral cats, goats, pigs, and rabbits. 



PRIORITY INDEX 



Not assigned. 



DESCRIPTION 



Xantusia riversiana was once assigned to a 

 separate genus, Klauberina (Savage 1957). This 

 lizard is 5.8 to 8.0cm in snout-to-vent length, 

 with soft granular sccdes and folds of skin on the 



